# CVE-2010-3035: Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability

> CVE-2010-3035: Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability. CVSS 7.5 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2010-3035
Last updated: 2026-01-12T20:41:35Z

- Published: 2010-08-30 20:00 UTC · Updated: 2026-01-12 20:41 UTC · Assigner: cisco
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS: 5.7%, 93th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-25, federal due date 2022-04-15, ransomware use: Unknown

## Description

Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service (peering reset) via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, aka Bug ID CSCti62211.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Cisco: IOS XR

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2010-3035)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2010-3035)
- [http://mailman.nanog.org/pipermail/nanog/2010-August/024837.html](http://mailman.nanog.org/pipermail/nanog/2010-August/024837.html)
- [http://osvdb.org/67696](http://osvdb.org/67696)
- [http://secunia.com/advisories/41190](http://secunia.com/advisories/41190)
- [https://exchange.xforce.ibmcloud.com/vulnerabilities/61443](https://exchange.xforce.ibmcloud.com/vulnerabilities/61443)
- [http://www.cisco.com/en/US/products/products\_security\_advisory09186a0080b4411f.shtml](http://www.cisco.com/en/US/products/products_security_advisory09186a0080b4411f.shtml)
- [http://www.securitytracker.com/id?1024371](http://www.securitytracker.com/id?1024371)
- [http://www.vupen.com/english/advisories/2010/2227](http://www.vupen.com/english/advisories/2010/2227)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2010-3035 · Markdown: https://rewindex.com/cve/CVE-2010-3035.md · JSON: https://rewindex.com/api/v1/cves/CVE-2010-3035 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T01:58:46.263Z